可是風扇聲音怎麼那麼大聲呢，不是說G5最大的特色就是超靜音的嗎？
於是祭出最後一招，使用隨機附贈的Apple Hardware Test測一下，結果是：
室溫在28度以下 All Pass 一切OK! 的確超靜音，
室溫在29度(攝氏)以上就產生錯誤訊息！
2 FAN/4/8/: FAN FOR BACKSIDE
這是怎麼一回事，明明規格是G5可工作於10到35度的作業環境下的嗎？
會不會哪一天空調失靈時因風扇控制不正常而燒壞CPU呢? 那可是天大的災難阿！！！
Apple Hardware Tester
版主: Alex Tsai、ross_tt、bryanchang、digdog
Apple Hardware Tester
上週五收到Dual G5一試之下，哇塞！真是快得令人頭皮發麻！
可是風扇聲音怎麼那麼大聲呢，不是說G5最大的特色就是超靜音的嗎？
於是祭出最後一招，使用隨機附贈的Apple Hardware Test測一下，結果是：
室溫在28度以下 All Pass 一切OK! 的確超靜音，
室溫在29度(攝氏)以上就產生錯誤訊息！
2 FAN/4/8/: FAN FOR BACKSIDE
這是怎麼一回事，明明規格是G5可工作於10到35度的作業環境下的嗎？
會不會哪一天空調失靈時因風扇控制不正常而燒壞CPU呢? 那可是天大的災難阿！！！
可是風扇聲音怎麼那麼大聲呢，不是說G5最大的特色就是超靜音的嗎？
於是祭出最後一招，使用隨機附贈的Apple Hardware Test測一下，結果是：
室溫在28度以下 All Pass 一切OK! 的確超靜音，
室溫在29度(攝氏)以上就產生錯誤訊息！
2 FAN/4/8/: FAN FOR BACKSIDE
這是怎麼一回事，明明規格是G5可工作於10到35度的作業環境下的嗎？
會不會哪一天空調失靈時因風扇控制不正常而燒壞CPU呢? 那可是天大的災難阿！！！
今天有空總算在蘋果網站上找到說明了，（原文下引），大意是說這錯誤訊息有可能
硬體風扇並沒有問題但仍會出現，等到Hardware Test 2.1.1會修正這個偵測靈敏度，
在此之前有這錯誤訊息的人可以這麼做：
1.關機
2.打開側蓋，不要拿開導流板，看在PCI槽前側也就是在光碟機下方的風扇，應該是
靜止的。
3.開機，如果這個風扇運作了，那你的G5沒有問題，如果否，那就搬機器送修啦！
TITLE
Power Mac G5, Apple Hardware Test 2.1: Interpreting Some Fan Error Messages
Article ID:
Created:
Modified:
86492
9/19/03
10/3/03
TOPIC
Learn how to interpret two Apple Hardware Test (AHT) 2.1 errors: "2FAN/4/x: Fan For BACKSIDE" and "2FAN/4/x: Fan For SLOT".
DISCUSSION
Symptom
Two error codes in Apple hardware Test (AHT) 2.1 may indicate an error when there is no error:
2FAN/4/x: Fan For BACKSIDE
(The "x" will be a number.)
This error code usually means the fan behind the drive bay has failed. This fan is a "blower" type fan, located behind the drive bay fan. The drive bay fan is located between the hard drive and the SuperDrive.
2FAN/4/x: Fan For SLOT
(The "x" will be a number.)
This error code usually means the slot fan has failed. The slot fan is located in front of the PCI slots near the front of the computer and just under the SuperDrive.
Products affected
Power Mac G5
Apple Hardware Test 2.1
Solution
When you see "2FAN/4/x: Fan For BACKSIDE" or "2FAN/4/x: Fan For SLOT", there's probably nothing wrong with the fans. To make sure the fans are working:
1. Remove the outer door, leaving the inner air deflector in place.
2. Look at the slot fan to see if it is working. (Compare the fan appearance when the computer is turned off, and when the computer is turned on. If the fan "disappears" when the computer is on, it is working.)
3. If the fan is not working, take the computer to an Apple Authorized Service Provider for repairs.
4. Apple Hardware Test 2.1 has been updated to 2.1.1 and contains a revised fan test. Contact Apple Support to get the updated version. It is expected to be available by late October 2003.
5. When you get the updated Apple Hardware Test, check the fans in your computer to make sure they're working.
If other fan error codes appear, your computer may need to be repaired. See the AppleCare Service and Support documentation that came with your Power Mac G5 or go to the Apple Support website for service options (http://www.apple.com/support/).
硬體風扇並沒有問題但仍會出現，等到Hardware Test 2.1.1會修正這個偵測靈敏度，
在此之前有這錯誤訊息的人可以這麼做：
1.關機
2.打開側蓋，不要拿開導流板，看在PCI槽前側也就是在光碟機下方的風扇，應該是
靜止的。
3.開機，如果這個風扇運作了，那你的G5沒有問題，如果否，那就搬機器送修啦！
TITLE
Power Mac G5, Apple Hardware Test 2.1: Interpreting Some Fan Error Messages
Article ID:
Created:
Modified:
86492
9/19/03
10/3/03
TOPIC
Learn how to interpret two Apple Hardware Test (AHT) 2.1 errors: "2FAN/4/x: Fan For BACKSIDE" and "2FAN/4/x: Fan For SLOT".
DISCUSSION
Symptom
Two error codes in Apple hardware Test (AHT) 2.1 may indicate an error when there is no error:
2FAN/4/x: Fan For BACKSIDE
(The "x" will be a number.)
This error code usually means the fan behind the drive bay has failed. This fan is a "blower" type fan, located behind the drive bay fan. The drive bay fan is located between the hard drive and the SuperDrive.
2FAN/4/x: Fan For SLOT
(The "x" will be a number.)
This error code usually means the slot fan has failed. The slot fan is located in front of the PCI slots near the front of the computer and just under the SuperDrive.
Products affected
Power Mac G5
Apple Hardware Test 2.1
Solution
When you see "2FAN/4/x: Fan For BACKSIDE" or "2FAN/4/x: Fan For SLOT", there's probably nothing wrong with the fans. To make sure the fans are working:
1. Remove the outer door, leaving the inner air deflector in place.
2. Look at the slot fan to see if it is working. (Compare the fan appearance when the computer is turned off, and when the computer is turned on. If the fan "disappears" when the computer is on, it is working.)
3. If the fan is not working, take the computer to an Apple Authorized Service Provider for repairs.
4. Apple Hardware Test 2.1 has been updated to 2.1.1 and contains a revised fan test. Contact Apple Support to get the updated version. It is expected to be available by late October 2003.
5. When you get the updated Apple Hardware Test, check the fans in your computer to make sure they're working.
If other fan error codes appear, your computer may need to be repaired. See the AppleCare Service and Support documentation that came with your Power Mac G5 or go to the Apple Support website for service options (http://www.apple.com/support/).
